Manufacture of paper boxes



F. R. DUCK. Manufacture of Paper Box.

No. 229,524. Patentd July 6,1880.

Fig. 1. Fig.2

a a c it n asses hwexmw UNITED STATES PATENT OFFICE.

FRANCIS R. DUCK, OF CHICAGO, ILLINOIS.

MANUFACTURE OF PAPER BOXES.

SPECIFICATION forming part of Letters Patent No. 229,524, dated July 6, 1880.

Application filed July 19, 1878.

To all whom it may concern.-

l Be it known that I, FRANCIS R. DUCK, of Chicago, Illinois, have invented a certain new and useful Improvement in the Manufacture of Boxes; and I hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanyin g drawings, which form apart of this specification.

My said invention relates to that class of boxes generally made of paper and known as neck or flanged boxes, being constructed in such manner that the flange or rim of the cover when applied to the body of the box will be flush therewith. For this purpose the boxbody has a flange at one or both ends, which is of less thickness than the remainder of the body over or within which flange the cover sets, giving a flush surface between the body and cover. As heretofore constructed the tubes or bodies of such boxes have been made of two or more pieces, wrapped one about the other, and fastened together in such relative positions that one piece would extend farther than the other at the end of the finished tube or body, and thus form the flange or extension described thinner than the body, and adapted to receive the flanged cover or bottom, as stated.

My, improvement consists in making the box tube or body of a single piece or sheet folded and secured upon itself in two or more contiguous layers, which layers, in the finished tube or body, extend unequally at the end thereof, and thus form a flange and shoulder adapted to receive a flanged cover or bottom flush with the surface of said tube or body.

i This will be more clearly understood by reference to the drawings,in which Figures 1 and 2 represent blanks or sheets of proper form to make myimproved box tube orbody and Figs. 3 and 4 represent tubes made, respectively, from said blanks.

That is to say, A, Fig. 1, is a sheet of proper form to make the tubeor body shown in Fig. 3; and B, Fig. 2, is a sheet of suitable shape to form the tube illustrated in Fig. 4.

The broader end of the blank, Fig. 1, being first rolled upon the mandrel to form the inner layer of the tube, and the narrower end being wrapped about said inner layer, said outer and inner layers obviously extend unequally at the end of the finished tube, Fig. 3. The projecting wings a and a, of the broader part of the blank form inner flanges or necks over which the cover or bottom may fit, and the retreated edges 0 of the blank form shoulders which meet the edges of the cover or bottom.

Similarly, a tube having one outer flange and one inner flange or neck, as seen in Fig.4, is formed by folding the blank B, Fig. 2, either end first, upon a mandrel. A tube having two outer flanges would be made by rolling the glallik, Fig. 1, narrower end first upon the man- In tubes having only two layers, one hearing the flange or flanges and the other the retreated edge or edges, the length of the projecting part or wing which forms the flange will equal or, preferably, somewhat exceed the circumference of the tube, in order that the flange may be entire in the completed tube. When the layers are more numerous, as when thin material is used, the length of the wings will vary according to the number of layers or thicknesses required on the flange.

In tubes made of paper or similar material the contiguous surfaces of the layers will be glued together, as in the ordinary construction of such boxes, the glue or other cement being preferably applied to appropriate parts of the blank before shaping the tube. By, also, at the same time gluing the wing which is to form the flange to receive the permanent bottom of the box, said bottom may be at once applied to the tube when the latter is taken from the mandrel, and further gluing and manipulation for this purpose avoided.

If desired, the bottom may be inserted within an outer flange of the tube, and with its own flange-edge outward and flush with the edge of the body. By this means a box of given capacity is materially lengthened, the bottom is elevated out of reachof injury or dampness,

and the package is fitted to stand more securely upon an uneven surface.

I have shown only the round or cylindric form of box-body for greater convenience of illustration and description. I do not, however, wish to be limited to this form, since it flange and shoulder adaptedtoreceiveaflanged cover or bottom flush with the surface of the tube, as described.

2. The box-tube having an outer flange at one end and an inner flange at the other, and

constructed of the single sheet shown in Fig.

2, folded and cemented upon itself, as described.

FRANGIS R. DUCK. \Vitnesses:

FREDK. W. SMITH, EDWARD CARD. 

